Author: adrian
Date: Tue Jul 31 18:47:17 2012
New Revision: 238954
URL: http://svn.freebsd.org/changeset/base/238954
Log:
Restore the PCI bridge configuration upon resume.
This allows my TI1510 cardbus/PCI bridge to work after a suspend/resume,
without having to unload/reload the cbb driver.
I've also tested this on stable/9. I'll MFC it shortly.
PR: kern/170058
Reviewed by: jhb
MFC after: 1 day
Modified:
head/sys/dev/pccbb/pccbb_pci.c
Modified: head/sys/dev/pccbb/pccbb_pci.c
==============================================================================
--- head/sys/dev/pccbb/pccbb_pci.c Tue Jul 31 18:44:10 2012
(r238953)
+++ head/sys/dev/pccbb/pccbb_pci.c Tue Jul 31 18:47:17 2012
(r238954)
@@ -465,6 +465,11 @@ cbb_chipinit(struct cbb_softc *sc)
if (pci_read_config(sc->dev, PCIR_LATTIMER, 1) < 0x20)
pci_write_config(sc->dev, PCIR_LATTIMER, 0x20, 1);
+ /* Restore bus configuration */
+ pci_write_config(sc->dev, PCIR_PRIBUS_2, sc->pribus, 1);
+ pci_write_config(sc->dev, PCIR_SECBUS_2, sc->secbus, 1);
+ pci_write_config(sc->dev, PCIR_SUBBUS_2, sc->subbus, 1);
+
/* Enable memory access */
PCI_MASK_CONFIG(sc->dev, PCIR_COMMAND,
| PCIM_CMD_MEMEN
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